@import url('https://fonts.googleapis.com/css2?family=DM+Serif+Display&family=Inter:wght@300;400;500;600&family=JetBrains+Mono:wght@400;500&display=swap');

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg-primary:    #0a0d14;
  --bg-secondary:  #0f1520;
  --bg-card:       #131c2e;
  --accent-blue:   #4a9eff;
  --accent-glow:   #1a6bcc;
  --text-primary:  #e8eaf0;
  --text-secondary:#8892a4;
  --text-muted:    #4a5568;
  --border:        #1e2d45;
  --success:       #34d399;
  --warning:       #fbbf24;
  --danger:        #f87171;
  --font-heading:  'DM Serif Display', serif;
  --font-body:     'Inter', sans-serif;
  --font-mono:     'JetBrains Mono', monospace;

  /* category colours */
  --cat-gov:  #4a9eff;
  --cat-def:  #f87171;
  --cat-com:  #fbbf24;
  --cat-aca:  #a78bfa;
  --cat-stu:  #34d399;
  --cat-dead: #4a5568;
  --cat-plan: #60a5fa;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
}

/* ── NAV ── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1.5rem;
  background: rgba(10,13,20,0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-back {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.85rem;
  font-family: var(--font-mono);
  transition: color 0.2s;
  white-space: nowrap;
}
.nav-back:hover { color: var(--accent-blue); }

.nav-center {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.02em;
}
.nav-flag { font-size: 1.1rem; }

.nav-tle-status {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  white-space: nowrap;
}

.status-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--text-muted);
  flex-shrink: 0;
}
.status-dot.live { background: var(--success); box-shadow: 0 0 6px var(--success); animation: pulse 2s infinite; }
.status-dot.error { background: var(--danger); }

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.4; }
}

/* ── HERO ── */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding-top: 56px;
}

#starfield {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.globe-wrap {
  position: absolute;
  inset: 0;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

#globeCanvas {
  display: block;
  width: 100%;
  height: 100%;
  cursor: grab;
}
#globeCanvas:active { cursor: grabbing; }

.globe-loading {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  pointer-events: none;
}
.globe-loading.hidden { display: none; }

.globe-spinner {
  width: 36px; height: 36px;
  border: 2px solid var(--border);
  border-top-color: var(--accent-blue);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.hero-text {
  position: relative;
  z-index: 2;
  text-align: center;
  pointer-events: none;
  margin-top: auto;
  padding-bottom: 0.5rem;
}

.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 5vw, 3.5rem);
  color: var(--text-primary);
  text-shadow: 0 0 40px rgba(74,158,255,0.3);
  line-height: 1.1;
}

.hero-sub {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 0.4rem;
  letter-spacing: 0.04em;
}

/* ── FILTER PILLS ── */
.filter-row {
  position: relative;
  z-index: 2;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  justify-content: center;
  padding: 0.75rem 1rem 1.25rem;
  margin-top: auto;
}

.pill {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.3rem 0.75rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(19,28,46,0.7);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  cursor: pointer;
  transition: all 0.2s;
  backdrop-filter: blur(8px);
}
.pill:hover { border-color: var(--accent-blue); color: var(--text-primary); }
.pill.active { background: var(--accent-blue); border-color: var(--accent-blue); color: #fff; }

.pill.cat-gov.active  { background: var(--cat-gov);  border-color: var(--cat-gov); }
.pill.cat-def.active  { background: var(--cat-def);  border-color: var(--cat-def); }
.pill.cat-com.active  { background: var(--cat-com);  border-color: var(--cat-com); color: #000; }
.pill.cat-aca.active  { background: var(--cat-aca);  border-color: var(--cat-aca); }
.pill.cat-stu.active  { background: var(--cat-stu);  border-color: var(--cat-stu); color: #000; }
.pill.cat-dead.active { background: var(--cat-dead); border-color: var(--cat-dead); }
.pill.cat-plan.active { background: transparent;     border-color: var(--cat-plan); color: var(--cat-plan); border-style: dashed; }

.pill-count {
  background: rgba(0,0,0,0.3);
  border-radius: 999px;
  padding: 0 0.35rem;
  font-size: 0.68rem;
  min-width: 18px;
  text-align: center;
}

/* ── ZOOM CONTROLS ── */
.zoom-controls {
  position: absolute;
  bottom: 5rem;
  right: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  z-index: 4;
}

.zoom-btn {
  width: 32px; height: 32px;
  background: rgba(19,28,46,0.85);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-secondary);
  font-size: 1.1rem;
  line-height: 1;
  cursor: pointer;
  backdrop-filter: blur(8px);
  transition: color 0.2s, border-color 0.2s;
  display: flex; align-items: center; justify-content: center;
}
.zoom-btn:hover { color: var(--text-primary); border-color: var(--accent-blue); }

/* ── SATELLITE OVERLAY ── */
.sat-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 3;
  overflow: hidden;
}

.sat-marker {
  position: absolute;
  transform: translate(-50%, -50%);
  pointer-events: all;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}

.sat-icon {
  width: 20px; height: 20px;
  color: var(--marker-color, #4a9eff);
  filter: drop-shadow(0 0 5px var(--marker-color, #4a9eff));
  transition: transform 0.2s ease, filter 0.2s ease;
  flex-shrink: 0;
}
.sat-marker:hover .sat-icon,
.sat-marker.active .sat-icon {
  transform: scale(1.7);
  filter: drop-shadow(0 0 10px var(--marker-color, #4a9eff)) brightness(1.3);
}

.sat-name-tag {
  font-family: var(--font-mono);
  font-size: 0.58rem;
  color: rgba(232,234,240,0.75);
  background: rgba(10,13,20,0.55);
  border: 1px solid rgba(255,255,255,0.08);
  padding: 1px 5px;
  border-radius: 3px;
  white-space: nowrap;
  backdrop-filter: blur(6px);
  letter-spacing: 0.03em;
  pointer-events: none;
  transition: opacity 0.2s, color 0.2s;
}
.sat-marker:hover .sat-name-tag,
.sat-marker.active .sat-name-tag {
  color: var(--marker-color, #4a9eff);
  background: rgba(10,13,20,0.85);
}

/* Popup card on hover */
.sat-popup {
  position: absolute;
  bottom: calc(100% + 10px);
  left: 50%;
  transform: translateX(-50%) translateY(4px) scale(0.95);
  width: 200px;
  background: rgba(13,19,32,0.96);
  border: 1px solid var(--border);
  border-top: 2px solid var(--marker-color, #4a9eff);
  border-radius: 8px;
  padding: 0.7rem 0.85rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.18s ease, transform 0.18s ease;
  backdrop-filter: blur(16px);
  box-shadow: 0 8px 32px rgba(0,0,0,0.6);
  z-index: 10;
}
.sat-marker:hover .sat-popup {
  opacity: 1;
  transform: translateX(-50%) translateY(0) scale(1);
  pointer-events: all;
}

.popup-name {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
  line-height: 1.2;
}

.popup-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.3rem 0.5rem;
  margin-bottom: 0.5rem;
}

.popup-item {
  display: flex;
  flex-direction: column;
  gap: 1px;
}
.popup-lbl {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.popup-val {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--marker-color, #4a9eff);
}

.popup-orbit-line {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
  padding-top: 0.4rem;
  margin-top: 0.1rem;
}

.popup-click-hint {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--text-muted);
  margin-top: 0.35rem;
  opacity: 0.7;
}

/* ── CATALOG ── */
.catalog {
  max-width: 1200px;
  margin: 0 auto;
  padding: 3rem 1.5rem 4rem;
}

.catalog-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.section-title {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  color: var(--text-primary);
}

.search-box {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.9rem;
  padding: 0.5rem 1rem;
  width: 220px;
  outline: none;
  transition: border-color 0.2s;
}
.search-box::placeholder { color: var(--text-muted); }
.search-box:focus { border-color: var(--accent-blue); }

/* ── SATELLITE GRID ── */
.sat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
  gap: 1rem;
}

.sat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem;
  cursor: pointer;
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
  position: relative;
  overflow: hidden;
}
.sat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--cat-color, var(--accent-blue));
  opacity: 0.7;
}
.sat-card:hover {
  border-color: var(--cat-color, var(--accent-blue));
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
}
.sat-card.highlighted {
  border-color: var(--cat-color, var(--accent-blue));
  box-shadow: 0 0 16px color-mix(in srgb, var(--cat-color, var(--accent-blue)) 40%, transparent);
}

.sat-card.status-dead { opacity: 0.6; }
.sat-card.status-planned { border-style: dashed; }

.card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.card-name {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  color: var(--text-primary);
  line-height: 1.2;
}

.card-badges {
  display: flex;
  gap: 0.3rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.badge {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
  letter-spacing: 0.04em;
  white-space: nowrap;
}
.badge-cat   { background: color-mix(in srgb, var(--cat-color) 15%, transparent); color: var(--cat-color); border: 1px solid color-mix(in srgb, var(--cat-color) 35%, transparent); }
.badge-orbit { background: rgba(255,255,255,0.05); color: var(--text-muted); border: 1px solid var(--border); }
.badge-status-active  { background: rgba(52,211,153,0.1); color: var(--success); border: 1px solid rgba(52,211,153,0.25); }
.badge-status-dead    { background: rgba(74,85,104,0.2);  color: var(--text-muted); border: 1px solid var(--border); }
.badge-status-planned { background: rgba(96,165,250,0.1); color: var(--cat-plan); border: 1px solid rgba(96,165,250,0.25); border-style: dashed; }

.card-operator {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card-desc {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-live {
  margin-top: 0.85rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border);
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 0.25rem;
}

.live-item {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}
.live-label {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.live-value {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent-blue);
}
.live-value.na { color: var(--text-muted); font-size: 0.7rem; }

/* ── DETAIL PANEL ── */
.panel-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(0,0,0,0);
  pointer-events: none;
  transition: background 0.3s;
}
.panel-overlay.open {
  background: rgba(0,0,0,0.6);
  pointer-events: all;
}

.detail-panel {
  position: fixed;
  top: 0; right: 0; bottom: 0;
  width: min(480px, 100vw);
  background: var(--bg-secondary);
  border-left: 1px solid var(--border);
  padding: 2rem 1.5rem;
  overflow-y: auto;
  transform: translateX(100%);
  transition: transform 0.35s cubic-bezier(0.4,0,0.2,1);
  z-index: 201;
}
.panel-overlay.open .detail-panel { transform: translateX(0); }

.panel-close {
  position: absolute;
  top: 1rem; right: 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-secondary);
  font-size: 0.9rem;
  padding: 0.25rem 0.5rem;
  cursor: pointer;
  transition: color 0.2s;
}
.panel-close:hover { color: var(--text-primary); }

/* Panel content */
.panel-cat-bar {
  height: 3px;
  border-radius: 2px;
  margin-bottom: 1.5rem;
}
.panel-name {
  font-family: var(--font-heading);
  font-size: 2rem;
  line-height: 1.1;
  margin-bottom: 0.35rem;
}
.panel-operator {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
}
.panel-badges {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
  margin-bottom: 1.25rem;
}
.panel-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 1.5rem;
}

.panel-section-title {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.75rem;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--border);
}

.panel-live-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.panel-live-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.75rem;
}
.panel-live-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.25rem;
}
.panel-live-val {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--accent-blue);
}
.panel-live-val.na { color: var(--text-muted); font-size: 0.8rem; }

.panel-meta-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}
.panel-meta-list li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: 0.85rem;
  gap: 0.5rem;
}
.panel-meta-list li span:first-child { color: var(--text-muted); flex-shrink: 0; }
.panel-meta-list li span:last-child  { color: var(--text-primary); font-family: var(--font-mono); font-size: 0.8rem; text-align: right; }

.panel-norad {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.5rem 0.75rem;
  display: flex;
  justify-content: space-between;
}

/* no results */
.no-results {
  grid-column: 1/-1;
  text-align: center;
  padding: 3rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

/* ── FOOTER ── */
.site-footer {
  text-align: center;
  padding: 2rem 1rem 3rem;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.8rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}
.site-footer a { color: var(--text-secondary); text-decoration: none; }
.site-footer a:hover { color: var(--accent-blue); }

/* ── RESPONSIVE ── */
@media (max-width: 640px) {
  .nav-tle-status { display: none; }
  .catalog { padding: 2rem 1rem 3rem; }
  .sat-grid { grid-template-columns: 1fr; }
  .catalog-header { flex-direction: column; align-items: flex-start; }
  .search-box { width: 100%; }
  .hero-title { font-size: 2rem; }
  .filter-row { gap: 0.3rem; }
  .pill { font-size: 0.7rem; padding: 0.25rem 0.55rem; }
}